http://articles.mercola.com/sites/articles/archive/2001/05/19/alzheimers-part-three.aspxElderly people with low blood levels of vitamin B-12 and folate may face an increased risk of developing Alzheimer's disease. Vitamin B-12 plays an important role in maintaining nerve cells, and some research has linked low blood levels of the vitaminenCommunityServer 2008.5 SP1 (Build: 31106.3070)